Magnesium (Mg) has 12 protons. The amount of protons something has is always the atomic number. This question is obsolete due to other wiki answer question answers.
12
Magnesium is used for.......STUFF
Because of the cost
Oxydation of magnesium: 2 Mg + O2 = 2 MgO
Osmium has as many protons as it needs
2 protons
It has 26 protons.
Bohrium has 107 protons.
26 protons
39 protons
how many protons does the carbonate ion have?
Beryllium has 4 protons